Duration vs. Credit Risk: Why Most Advisors Only Manage One
Fixed income has two primary levers for generating return and managing risk. Most portfolios are built as though only one of them exists.
There is a persistent gap in how fixed income is discussed at the advisor level versus how it is actually managed by institutional credit professionals. That gap does not come from a lack of intelligence or effort. It comes from the way fixed income tools have historically been packaged and sold.
Most advisors, when they think about fixed income risk, think about interest rate risk. They think about duration. They ask: how long is this bond? How much does it move if rates rise by 100 basis points? This is a legitimate and important question. It is also only half of the picture.
The other half is credit risk. And for most RIA-managed fixed income portfolios, it runs almost entirely on autopilot.
The Two Levers, Defined
Duration is a measure of interest rate sensitivity. A bond with a duration of five years will decline approximately 5% in price if interest rates rise by 1%. Duration is driven by maturity, coupon structure, and the level of prevailing rates. It is a mathematical fact about a bond, not a judgment about its issuer.
Credit risk is something different. It is the probability that an issuer fails to make its contractually promised payments, and the severity of the loss if that failure occurs. Credit risk is driven by the financial health of the borrower: its leverage, its cash flow coverage, the quality of its assets, its position in the capital structure. It is fundamentally a question of business risk, not mathematics.
Both levers generate return. Investors who extend duration are compensated through a term premium, an additional yield for accepting the uncertainty of a longer time horizon. Investors who accept credit risk are compensated through a credit spread, an additional yield above Treasury rates for bearing the probability of default. These are distinct sources of return, with distinct drivers and distinct risks.
Why Advisors Tend to Focus on Duration
Duration is visible. It is published on every fund fact sheet. It appears in every bond fund comparison. It can be modeled cleanly, communicated simply, and adjusted by swapping one fund for another.
Credit risk is harder to see. A bond fund described as "investment grade" can hold anything from AAA-rated Treasuries to BBB-rated corporate bonds, the lowest rung of investment grade, which carry meaningfully higher default probabilities and dramatically wider spreads during market stress. The credit risk embedded in a broad index fund is not visible from a single number on a fact sheet. It requires issuer-level analysis.
The practical consequence is that many advisors actively manage duration, shortening or lengthening their bond exposure based on their rate outlook, while largely accepting whatever credit risk happens to be embedded in the fund or ETF they select. The credit lever, in many portfolios, is not being managed at all. It is being inherited.
The Cost of Conflating Them
The confusion between duration risk and credit risk has a real cost, and that cost tends to surface during credit events rather than rate events.
Consider 2020. When credit markets seized in March, investment-grade corporate bond spreads widened by more than 200 basis points in a matter of weeks. A fund holding BBB-rated corporates did not decline because interest rates moved. It declined because credit risk was repriced sharply. Advisors who had selected short-duration corporate bond funds to manage rate sensitivity found that their duration management had not protected them from the source of the actual volatility.
The same dynamic appears across credit cycles. Duration and credit risk can, and often do, move independently. An advisor managing only duration is driving with one hand on the wheel.
Managing Both Levers Requires a Different Infrastructure
Actively managing both duration and credit risk simultaneously is not something a passive bond fund can do. By definition, an index-tracking fund holds what the index holds. When credit conditions deteriorate and certain issuers become more stressed, the fund cannot reduce exposure to those issuers. It holds them because they are in the index.
Issuer-level credit management requires a fixed income professional reviewing individual names, monitoring deterioration in credit metrics, making rotation decisions based on credit fundamentals rather than index weight. This is what institutional fixed income management has always done. Until recently, it was largely inaccessible to the clients of independent advisors.
A separately managed account, constructed and actively monitored by an experienced fixed income team, makes both levers available. Duration can be positioned based on the interest rate environment. Credit exposure can be selected and adjusted based on issuer quality, sector dynamics, and spread levels. The advisor can see every position held, every credit decision made, and every risk the portfolio is carrying.
That is not a marginal improvement over a bond fund. It is a fundamentally different approach to fixed income management.
What This Means for Your Clients
For clients with meaningful fixed income allocations, the question worth asking is not only "what is the duration of my bond portfolio?" It is also: who selected the credits in this portfolio, what process governs those decisions, and what happens when credit conditions deteriorate?
The answers matter more in some environments than others. In a period of historically tight credit spreads and rising refinancing stress among lower-quality issuers, they matter a great deal.
Fixed income has two levers. Managing both is not a luxury. It is what active management is for.
Brian Lockwood is the Chief Investment Officer of Piton with over 20 years of fixed income portfolio management experience. He has managed fixed income strategies for HSBC, Ramius Capital Group, and DLJ/Credit Suisse Asset Management. He holds the Chartered Financial Analyst® designation.
Kris Konrad is a founding partner of Piton with over 20 years of fixed income experience specializing in Agency Mortgage-Backed Securities. He has managed one of the largest levered Agency MBS portfolios, with over $140 billion in assets at its peak. He previously served as Co-Chief Investment Officer at Annaly.
About Piton Investment Management
Piton Investment Management is a fixed income asset manager serving financial advisors, RIA firms, family offices, and institutional and individual investors. We specialize in constructing customized separately managed accounts (SMAs) across traditional fixed income and structured notes, drawing on over 90 years of combined industry experience.
Our approach is built on the belief that fixed income portfolios should be tailored to each client's objectives, not adapted from a standard model. Every account is managed with direct oversight, with a focus on generating alpha, managing risk, and maintaining transparency throughout.
Our Strategies
Yield Enhanced – income-focused portfolios with defined risk parameters
Conservative Total Return – balancing income generation with capital preservation
Cash Management – liquidity-driven, low-risk solutions
Tax-Exempt – municipal bond strategies for tax-sensitive investors
It's not what we do that makes us different. It's how we do it.
Email: info@pitonim.com | Phone: 646-518-2800 | 401 Franklin Avenue, Suite 202-B, Garden City, NY 11530
Learn how to build adaptive fixed income portfolios across all economic regimes in our comprehensive thought leadership paper, Fixed Income Strategies Across Market Environments ➤
This analysis is provided for educational purposes and does not constitute investment advice. Past performance does not guarantee future results. Consider your individual circumstances and consult with qualified professionals before making investment decisions. References to specific firms or funds are for informational purposes based on publicly reported information and do not constitute an endorsement or criticism of any investment manager.